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Used bulldozers typically refer to crawler-type bulldozers. Leading brands include Shantui, Komatsu, XuanGong, YiShan, Caterpillar, and others. Common power ratings range from 130 HP, 160 HP, 220 HP, to 320 HP.
Equipment such as the Shantui SD22 Bulldozer features a simple, rugged, and durable structure combined with powerful traction; it is primarily utilized for dozing, site leveling, backfilling operations, and road construction. These machines serve as indispensable heavy machinery for foundational construction tasks at building sites, mines, and agricultural and water conservancy projects.
Advantages of Used Bulldozers
Mature structural design, facilitating easy maintenance and readily available spare parts.
Low requirements regarding fuel quality and operating terrain; highly robust and resilient.
Ideal for short-term projects, scattered job sites, and independent owner-operators.
Application Scenarios
Earthworks
Pushing soil and rock debris, site leveling, roadbed clearing, and foundation pit backfilling.
Mines and Quarries
Clearing working faces, material stockpiling, road maintenance, hazard mitigation, and leveling operational platforms.
Agricultural and Water Conservancy Projects
Constructing irrigation ditches, building embankments, land reclamation and leveling, and excavating fish ponds.
Forestry and Pastures
Clearing brush and undergrowth, creating firebreaks, and leveling access roads within pastures.
Demolition and Emergency Response
Clearing construction debris, unblocking roads following snowstorms or mudslides, and emergency road construction.
Infrastructure Construction Sites
Working in conjunction with excavators and road rollers to perform initial site clearing and construct temporary access roads.
Used Shantui SD22 Bulldozer FAQ
1.Track Abnormal Noise, Derailment, Rapid Wear
Causes
Track too loose / too tight
Carrier rollers, track rollers, or idlers are worn or seized
Track links are worn; track pins are loose
Prolonged operation on rocky terrain
Solutions
Properly adjust the track tensioning cylinder
Replace worn carrier rollers / track rollers
Lubricate travel rollers; apply grease regularly
Avoid forcefully scraping against rocks
2.Sluggish overall machine movement; engine stalls at idle
Causes:
Idle speed is too low
Hydraulic pump is worn
Main pressure valve pressure is too low
Insufficient engine power
Solutions:
Adjust engine idle speed
Check hydraulic system pressure
Repair or replace the main pump
Restore engine power
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